This is very high resolution (121 Megapixels) square collage with 21 real snowflake macro photos, photographed at glass surface with LED back lighting. All snow crystals you see here was not re-scaled, so their difference in size is real.

You can see here wide range of snow crystal shapes and sizes: from small and simple hexagonal plates to exotic snowflakes with 12 arms, and very large and complex fernlike dendrite snowflake (around 7 millimeters from tip to tip), which you see in the center.